CN107091861A - A kind of device and method for measuring different depth water body resistivity under water - Google Patents
A kind of device and method for measuring different depth water body resistivity under water Download PDFInfo
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- CN107091861A CN107091861A CN201710449101.0A CN201710449101A CN107091861A CN 107091861 A CN107091861 A CN 107091861A CN 201710449101 A CN201710449101 A CN 201710449101A CN 107091861 A CN107091861 A CN 107091861A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 description 9
- 230000005684 electric field Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
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- 238000004457 water analysis Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
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Abstract
A kind of device and method for measuring different depth water body resistivity under water, it is related to a kind of device and method for measuring water body resistivity, and in particular to a kind of device and method of measurement different depth water body resistivity under water.The present invention is in order to solve existing water body method of measuring resistivity on test achievement degree of accuracy influence and the problem of relatively low operating efficiency.The present invention includes first electrode, second electrode, 3rd electrode, 4th electrode, insulating bar, power supply, voltmeter and ammeter, first electrode, second electrode, 3rd electrode, 4th electrode is from top to bottom equidistantly sequentially arranged on insulating bar, first electrode is connected by wire with ammeter negative pole, ammeter positive pole is connected by the positive pole of wire and power supply, 4th electrode is connected by the negative pole of wire and power supply, second electrode is connected by the positive pole of wire and voltmeter, 3rd electrode is connected by the negative pole of wire and voltmeter, power supply, voltmeter and ammeter are arranged on mobile hull.The invention belongs to field of geophysical exploration.
Description
Technical field
The present invention relates to a kind of device and method for measuring water body resistivity, and in particular to one kind measures different depth under water
The device and method of water body resistivity, belongs to field of geophysical exploration.
Background technology
Drinking water, agricultural water, industrial water etc. can be had by having from the purposes using water, because of the difference of purposes, to water quality
Requirement it is also different, water analysis in national economy have extremely important effect.The temperature of large and middle reservoirs, deeper urban river water
Degree, turbidity are usually layer distributed, it is necessary to be investigated, studied for the different water levels water of reservoir and river course.Due to water quality
Related to the resistivity of water, the resistivity of measurement different water levels is one of indispensable important process in Investigation of water resources field.
The resistivity method of measurement different water levels is the water sample that different water depth is taken using scene at present, then takes water sample
Laboratory carries out water sample resistivity test, due to having the links such as sampling, sample circulation, Sample storage, test order of accuarcy and effect
Rate can all be affected.
Scene of the present invention can complete different depth water body resistivity measurement, and the test device of invention is simple, easy to operate,
Eliminate the sampling of different depth water body, to all too many levels such as laboratory sample presentation, laboratory test, it is to avoid sample variation may be right
The influence that test data accuracy is produced, significantly improves the degree of accuracy and the operating efficiency of Measurement results data.
The content of the invention
The present invention for solve existing water body method of measuring resistivity on test achievement degree of accuracy influence and operating efficiency compared with
Low the problem of, propose a kind of device and method for measuring different depth water body resistivity under water.
The present invention adopts the technical scheme that to solve the above problems：Device of the present invention includes first electrode, second
Electrode, the 3rd electrode, the 4th electrode, insulating bar, power supply, voltmeter and ammeter, first electrode, second electrode, the 3rd electrode,
4th electrode is from top to bottom equidistantly sequentially arranged on insulating bar, and first electrode is connected by wire with ammeter negative pole, electricity
Flow table positive pole is connected by the positive pole of wire and power supply, and the 4th electrode is connected by the negative pole of wire and power supply, and second electrode is led to
The positive pole for crossing wire and voltmeter is connected, and the 3rd electrode is connected by the negative pole of wire and voltmeter, power supply, voltmeter and electric current
Table is arranged on mobile hull.
The method of the invention is comprised the following steps that：
Step 1: insulating bar to be inserted vertically into the depth to be measured in water, and keep first electrode, second electrode,
3rd electrode, the 4th electrode are all submerged in water, and current test position depth of water numerical value is recorded according to insulating bar high scale；
Step 2: turn on the power, read the electric current meter reading for being connected to power supply output loop and be connected to second electrode, the
The reading on voltmeter between three electrodes is simultaneously recorded, and completes a depth of water location site single measurement；For increase measurement
The accuracy of data, the data that can repeatedly read and be shown on recording ammeter, voltmeter in a depth；
Step 3: repeating above-mentioned two step, the work on the spot of different depth under water resistivity measurements is completed；
Step 4: the on-the-spot test record data obtained according to above-mentioned steps, calculates the water body resistance of each test depth of water
Rate.
The beneficial effects of the invention are as follows：
1st, the present invention can complete different depth water body resistivity measurement at the scene, it is no longer necessary to sample water body, Xiang Shi
Test all too many levels such as room sample presentation, laboratory test, it is to avoid issuable temperature, pollution, chromatography etc. during sample circulation
The influence of physics and chemistry disturbance factor, improves the accuracy and operating efficiency of data.
2nd, apparatus of the present invention are simple in construction, only used electrode, power supply, voltmeter, ammeter, insulating bar and part and lead
Line, device device is few, conveniently goes to on-the-spot test to carry；
3rd, the present invention is easy to operate, and each device i.e. is completed into test device on-site installation work by wire connection；
During test, insulating bar is sent into water, reading is goed deep into the depth of water, ammeter, voltmeter data and recorded, and just completes single-spot testing
Work on the spot, it is only necessary to 1-2 people's execute-in-place.
Brief description of the drawings
Fig. 1 is the structural representation of measurement apparatus of the present invention.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1, a kind of measurement described in present embodiment is different deep under water
Spend water body resistivity device include first electrode 1, second electrode 2, the 3rd electrode 3, the 4th electrode 4, insulating bar 5, power supply 6,
Ammeter 7 and voltmeter 8, first electrode 1, second electrode 2, the 3rd electrode 3, the 4th electrode 4 are from top to bottom equidistantly pacified successively
On insulating bar 5, first electrode 1 is connected by wire with the negative pole of ammeter 7, and the positive pole of ammeter 7 passes through wire and power supply 6
Positive pole is connected, and the 4th electrode 4 by wire with the negative pole of power supply 6 by being connected, and second electrode 2 is by passing through wire and voltmeter
8 positive pole connection, the 3rd electrode 3 by wire with the negative pole of voltmeter 8 by being connected, and power supply 6, voltmeter 8 and ammeter 7 are set
Put on mobile hull 10.
Embodiment two：Illustrate present embodiment with reference to Fig. 1, a kind of measurement described in present embodiment is different deep under water
Scale is indicated along its length on the insulating bar 5 for the device for spending water body resistivity.Other compositions and annexation and specific reality
Apply mode one identical.
Embodiment three：Illustrate present embodiment with reference to Fig. 1, a kind of measurement described in present embodiment is different deep under water
The method of degree water body resistivity is achieved by the steps of：
Step 1: insulating bar to be inserted vertically into the depth to be measured in water, and keep first electrode, second electrode,
3rd electrode, the 4th electrode are all submerged in water, and current test position depth of water numerical value is recorded according to insulating bar high scale；
Step 2: turning on the power, output current meter reading and the voltage being connected between second electrode, the 3rd electrode are read
Reading on table is simultaneously recorded, and completes a depth of water location site single measurement；, can be with to increase the accuracy of measurement data
The data for repeatedly reading and being shown on recording ammeter, voltmeter in a depth；
Step 3: repeating above-mentioned two step, the work on the spot of different depth under water resistivity measurements is completed；
Step 4: the on-the-spot test record data obtained according to above-mentioned steps, calculates the water body resistance of each test depth of water
Rate.
Operation principle
Assuming that the resistivity of 4 interelectrode water bodys is identical in device, asks and export electricity in the electrode 4 of first electrode 1 and the 4th
Stream is water body between the electrode 4 of first electrode 1 and the 4th in the case that I, second electrode 2 and the potential difference of the 3rd electrode 3 are Δ U
Electricalresistivityρ；
Because in water environment, electric field can be regarded as at the total space electric field of homogeneous isotropism, Gu Shui midpoints electric field R
Current potential expression formula be：
U in formula (1)RThe current potential of R points is represented, I represents electric power outputting current value, and ρ represents the resistivity in electric field, R tables
Show distance of certain point in electric field apart from point source；
According to the point current potential expression formula of certain in the water of available two different in nature point electric current source electric fields of formula (1)：
R in formula (2)1Represent the point of certain in field apart from the distance of positive electrode, R2Represent distance of the shop apart from negative electrode；
In the present invention, because four electrode distances are identical, i.e. first electrode, second electrode, second electrode, the 3rd electrode,
3rd electrode, the 4th electrode distance are L, can obtain current potential U at second electrode 2 by formula (2)aExpression formula is：
Similarly, current potential U at the 3rd electrode 3bExpression formula is：
It can show that the potential difference Δ U between the electrode 3 of second electrode 2 and the 3rd is by formula (3) and formula (4)：
Water-outlet body electricalresistivityρ's calculation formula can be obtained by formula (5)：
Above formula shows, if scene measure by the electric current I and second electrode 2 between the electrode 4 of first electrode 1 and the 4th with
Potential difference Δ U between 3rd electrode 3, it is possible to calculate water body electricalresistivityρ between the electrode 4 of first electrode 1 and the 4th.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, according to the technical spirit of the present invention,
Within the spirit and principles in the present invention, any simple modification, equivalent substitution and improvement for being made to above example etc., still
Belong within the protection domain of technical solution of the present invention.
Claims (3)
1. a kind of device for measuring different depth water body resistivity under water, it is characterised in that：A kind of measurement is different deep under water
Spending the device of water body resistivity includes first electrode (1), second electrode (2), the 3rd electrode (3), the 4th electrode (4), insulating bar
(5), power supply (6), ammeter (7) and voltmeter (8) wire, first electrode (1), second electrode (2), the 3rd electrode (3), the 4th
Electrode (4) is from top to bottom equidistantly sequentially arranged on insulating bar (5), and first electrode (1) passes through wire and ammeter (7) negative pole
It is connected, dynamometer instrument (8) positive pole is connected by wire with the positive pole of power supply (6), the 4th electrode (4) passes through wire and power supply (6)
Negative pole is connected, and second electrode (2) is connected by wire with the positive pole of voltmeter (8), and the 3rd electrode (3) passes through wire and voltmeter
(8) negative pole connection, power supply (6), voltmeter (8) and ammeter (7) are arranged on mobile hull (9).
2. a kind of device for measuring different depth water body resistivity under water according to claim 1, it is characterised in that：Insulating bar
(5) scale is indicated on along its length.
3. a kind of method that utilization claim 1 described device measures different depth water body resistivity under water, it is characterised in that：Institute
A kind of method for measuring different depth water body resistivity under water is stated to be achieved by the steps of：
Step 1: insulating bar (5) is inserted vertically into the depth to be measured in water, and keep first electrode (1), second electrode
(2), the 3rd electrode (3), the 4th electrode (4) are all submerged in water, and current test position is recorded according to insulating bar (5) high scale
Depth of water numerical value；
Step 2: turn on the power (6), read output current table (7) reading and be connected to second electrode (2), the 3rd electrode (3) it
Between voltmeter (8) on reading and recorded, complete a depth of water location site single measurement；For increase measurement data
Accuracy, the data that can repeatedly read and be shown on recording ammeter (7), voltmeter (8) in a depth；
Step 3: repeating above-mentioned two step, the work on the spot of different depth under water resistivity measurements is completed；
Step 4: the on-the-spot test record data obtained according to above-mentioned steps, calculates the water body resistivity of each test depth of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710449101.0A CN107091861A (en) | 2017-06-14 | 2017-06-14 | A kind of device and method for measuring different depth water body resistivity under water |
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| CN201710449101.0A CN107091861A (en) | 2017-06-14 | 2017-06-14 | A kind of device and method for measuring different depth water body resistivity under water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941555A (en) * | 2017-11-20 | 2018-04-20 | 中国矿业大学 | A kind of well depthkeeping degree water-bearing layer water sampler that can determine whether underground water cross strata pollution |
| CN110308183A (en) * | 2019-06-27 | 2019-10-08 | 中国矿业大学 | A kind of lossless detection method of real-time monitoring concrete water-permeating depth |
| CN112433096A (en) * | 2019-08-26 | 2021-03-02 | 南京工程学院 | Method for testing resistivity of conductive concrete in loading process |
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| CN102027366A (en) * | 2008-03-28 | 2011-04-20 | 棉花集水社区合作研究中心有限公司 | System, apparatus and method for measuring soil moisture content |
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| CN106324043A (en) * | 2016-08-19 | 2017-01-11 | 成都理工大学 | Device and method for monitoring wetting depth of landslide mass |
| CN206772883U (en) * | 2017-06-14 | 2017-12-19 | 黑龙江省水利科学研究院 | A kind of device for measuring underwater different depth water body resistivity |
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Patent Citations (6)
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| CN102027366A (en) * | 2008-03-28 | 2011-04-20 | 棉花集水社区合作研究中心有限公司 | System, apparatus and method for measuring soil moisture content |
| CN102141534A (en) * | 2011-01-18 | 2011-08-03 | 中国地质调查局水文地质环境地质调查中心 | Seawater invasion monitoring method and distributed conductivity geological disaster monitoring device |
| CN102305814A (en) * | 2011-05-25 | 2012-01-04 | 中国海洋大学 | System and method for monitoring seawater intrusion-ground water level-soil salinization in real time |
| CN205786441U (en) * | 2016-06-28 | 2016-12-07 | 河海大学 | Seawater resistivity on-line measurement device |
| CN106324043A (en) * | 2016-08-19 | 2017-01-11 | 成都理工大学 | Device and method for monitoring wetting depth of landslide mass |
| CN206772883U (en) * | 2017-06-14 | 2017-12-19 | 黑龙江省水利科学研究院 | A kind of device for measuring underwater different depth water body resistivity |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941555A (en) * | 2017-11-20 | 2018-04-20 | 中国矿业大学 | A kind of well depthkeeping degree water-bearing layer water sampler that can determine whether underground water cross strata pollution |
| CN110308183A (en) * | 2019-06-27 | 2019-10-08 | 中国矿业大学 | A kind of lossless detection method of real-time monitoring concrete water-permeating depth |
| CN110308183B (en) * | 2019-06-27 | 2022-04-22 | 中国矿业大学 | Nondestructive testing method for monitoring concrete water penetration depth in real time |
| CN112433096A (en) * | 2019-08-26 | 2021-03-02 | 南京工程学院 | Method for testing resistivity of conductive concrete in loading process |
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Application publication date: 20170825 |
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